Clean up reflection a bit, and how we do pretty printing of ast nodes. Registered new internal_to_string in reflection module so that we

can have automatic pretty printing of ast nodes during repl eval.

src/reflection.cpp

@@ -25,6 +25,7 @@ CHAISCRIPT_MODULE_EXPORT  chaiscript::ModulePtr create_chaiscript_module_reflect
       ((filename))
       ((start))
       ((end))
+      ((internal_to_string))
       ((children))
     );
 
@@ -33,7 +34,6 @@ CHAISCRIPT_MODULE_EXPORT  chaiscript::ModulePtr create_chaiscript_module_reflect
       (chaiscript::ChaiScript_Parser ()),
       ((parse))
       ((ast))
-      ((show_match_stack))
     );